IPA: //sʊrˈtoʊ//
KK: /sʊrˈtoʊ/
A long, fitted coat typically worn by men, often used for formal occasions or in cold weather.
He wore a surtout over his suit to keep warm during the winter event.
Surtout → It comes from Old French 'surtout' (meaning above all or especially). The word refers to something that is of the highest importance or priority.
Think of 'above all' in French — that's why 'surtout' means especially or primarily.